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US 2013/0340345 A1Published application
Tilt-up door
AssigneeHP Doors, LLC
InventorRoland W. Betker
Life of this patent
Estimating the term…
Abstract
A tilt-up door for a building having an opening, a pair of substantially vertically juxtaposed members, cam surfaces extending laterally from the vertical members at the upper portion and a door sized to span the opening. The door can be pivotally coupled to carriages arranged for vertical movement along the vertical members and can have cam followers extending laterally from the upper portion of the door to contact the cam surfaces. An actuator or actuators can be connected to the carriages to move the carriages along the vertical members. When the actuator or actuators are operated to move the carriages vertically along the members the cam followers can move along the cam surfaces to tilt the door to a horizontal position as the door is moved vertically upward into an open raised position.
Claims21
A tilt-up door system for a building having an opening comprising:
- first and second substantially vertically juxtaposed members having upper and lower portions extending along opposite sides of the opening;
- first and second curved cam surfaces connected at one end to and extending generally laterally from respective ones of the first and second juxtaposed members at the upper portion thereof and having a second end;
- a door sized to span the opening having:
- a top, a bottom and at least two vertical side members, the at least two side members each having a horizontally extending pivot shaft tube positioned vertically between the top and bottom of the door;
- and
- first and second cam followers connected to the door extending laterally from an upper portion of the door in register with respective ones of the first and second cam surfaces;
- first and second carriages each including a horizontally extending pivot shaft journal, each of the carriages being arranged for vertical movement along respective ones of the first and second juxtaposed members;
- a pair of horizontally extending pivot shafts, each pivot shaft pivotally connecting a pivot shaft tube to a pivot shaft journal;
- and
- at least one actuator connected to the first and second carriages operable to move the first and second carriages along respective ones of the first and second juxtaposed members;
- whereby when the door is placed in alignment with the opening in a closed, lowered position, the first and second carriages are positioned for vertical movement along respective ones of the first and second juxtaposed members and the first and second cam followers are in register with respective ones of the first and second cam surfaces, when the at least one actuator is operated to move the first and second carriages vertically along respective ones of the first and second juxtaposed members the first and second cam followers move along respective ones of the first and second cam surfaces to tilt the door to a generally horizontal position as the door is moved vertically upward by the first and second carriages.
8 more elements
The tilt-up door system of claim 3, further comprising:
- first and second juxtaposed support members having upper and lower portions extending along opposite sides of the opening, the upper portion of respective ones of the first and second juxtaposed support members being connected to the second end of respective ones of the first and second cam surfaces, and the lower portion of respective ones of the first and second juxtaposed support members being attached to the floor.
A tilt-up door system for a building having an opening comprising:
- first and second substantially vertically juxtaposed channel members each having a web and first and second spaced flanges forming a generally U-shaped channel and having upper and lower portions extending substantially vertically along opposite sides of the opening, the generally U-shaped channels facing each other and the opening;
- first and second curved cam surfaces connected at one end to and extending generally laterally from respective ones of the juxtaposed U-shaped channel members at the upper portion thereof;
- a door sized to span the opening having;
- a top, a bottom and at least two vertical side members, the at least two side members each having a horizontally extending pivot shaft tube positioned vertically between the top and bottom of the door;
- and
- first and second cam followers connected to the door extending laterally from an upper portion of the door in register with respective ones of the first and second cam surfaces;
- first and second carriages each including a horizontally extending pivot shaft journal and at least two wheels, each of the carriages being positioned in one of the U-shaped channels for vertical movement in the respective U-shaped channels;
- a pair of horizontally extending pivot shafts, each pivot shaft pivotally connecting a pivot shaft tube to a pivot shaft journal;
- and
- at least one actuator connected to the first and second carriages operable to move the first and second carriages in the U-shaped channels;
- whereby when the door is placed in alignment with the opening in a closed, lowered position, the first and second carriages are positioned for vertical movement in respective ones of the U-shaped channels and the first and second cam followers are in register with respective ones of the first and second cam surfaces, when the at least one actuator is operated to move the first and second carriages vertically in respective ones of the U-shaped channels the first and second cam followers move along respective ones of the first and second cam surfaces to tilt the door to a generally horizontal position as the door is moved vertically upward by the carriages.
8 more elements
Dependencies are inferred from the claim text.